Ontologia

Prefecture City · CHN

Mianyang

China

CwaTemperate, dry winter, hot summer(64 %)

Species observed

2 696

Observations

22 425

Area

20 207,9km²

Ecological tissue

Sample of 41 species (selected proportionally per kingdom among those with at least one documented interaction here) to keep the graph readable. Hover for details, click to explore the full ecosystem of a species.

ℹ️ The territory contains many more species than displayed and all their documented interactions: the graph is intentionally the structural skeleton (top-N species by composite local score, edges filtered by Serrano 2009 disparity filter α=0.2).

RègnesAnimalPlanteChampignonBacterie
RelationsPredationParasitismeSymbiosePollinisation
StatutEn dangerVulnérableProtégéeEndémique

Indicateurs du tissu écologique

Tissu écologique de Mianyang : 38 espèces reliées par 40 interactions GloBI sur 4 types (connectance 4.4%, filtre Serrano α=0.2). 5 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
43
Interactions affichées
40
Connectance
0.044
Patrimoniales
0
Plus dense que (national)0 %(top 100%)

Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).

Species present

2 696 distinct species · 22 425 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

22 425 obs · 253 cellules
Obs. / cellule
≥ 860
98–859
32–97
9–31
< 9

Source : GBIF — observations agrégées par hexagones 0.027° × 0.027° (~22km), filtre précision coordonnée < 10 km. Fond carte : OpenFreeMap · © OpenStreetMap.

Climate

Mean T°

12,9°C

Annual rain

1 210mm

Warmest m°

25,3°C

Coldest m°

-3,5°C

Elevation: 1 229 m on average (min 346 m, max 4 893 m)

Bioclimatic detailsExpert
Annual mean temp.
12,9°C
Annual rain
1 210mm
Warmest month
25,3°C
Coldest month
-3,5°C
Mean alt.
1 229m
Min
346m
Max
4 893m
Std. dev.
897m
Köppen-Geiger (dominant)
CwaTemperate, dry winter, hot summer(64 %)Temperate

CHELSA BIO 1-19 v2.1 · ETOPO DEM 60s · Köppen-Geiger 1991-2020 (Beck et al. 2018)

Soil & lithology

pH H₂O

6,5

Org. C

31,2g/kg

Clay

25,3%

Sand

29,6%

Silt

45,1%

Average over 0-30 cm. Per-depth details in expert panel.

Dominant lithology: smGLiM

3 soil depths detailedExpert
0–5 cm
pH H₂O
6,4
Org. C
51,1g/kg
Clay
24,7%
Sand
30,2%
Silt
45,1%
5–15 cm
pH H₂O
6,5
Org. C
24,9g/kg
Clay
25,3%
Sand
29,6%
Silt
45,1%
15–30 cm
pH H₂O
6,5
Org. C
17,6g/kg
Clay
25,8%
Sand
29,1%
Silt
45,1%

SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)

Land cover

Forest47.7%
Crops23.2%
Built-up0.7%
Bare soil1.8%
Other (grassland, water…)26.6%

Copernicus Global Land Cover 100m (Buchhorn et al. 2020)

Hydrology57 basins · 50 lakes · 32 rivers

Hydrology metrics for this exact territory

Stream length here

2 418,0km

Lake surface here

48,34km²

Basins crossed

57

Max stream order

5

Max drainage

18 305km²

Discharge in basins

1 815,9m³/s

Mean precip.

896mm/an

Mean T°

13,4°C

Moisture idx

-0,13

Max snow

14%

Mean runoff

457mm/an

Mean elev. (basins)

1 226m

Watersheds crossing here

48 more basins

Lakes (50, top by area)

41 more lakes

Rivers / streams (32, ord ≥ 4)

20 more river segments

Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10

Human pressure

Pop. density

1hab/km²

Night light

0,6nW

Built-up

65,8%

Pesticides

70,5kg/km²

GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)

Protected areas5

IUCN Not Applicable · 3IUCN VI · 2

Baishuijiang

IUCN Not Applicable

UNESCO-MAB Biosphere Reserve · 2000

2 660 km²

WDPA (World Database on Protected Areas) — UNEP-WCMC & IUCN

Sub-administrations7